Conjugación del verbo inglés
COULD TOOTH

Verbo regular: tooth - toothed - toothed

Afirmación

Forma simple	Forma con V-ing
I could tooth you could tooth he could tooth we could tooth you could tooth they could tooth	I could be toothing you could be toothing he could be toothing we could be toothing you could be toothing they could be toothing
Perfecto	Perfecto con V-ing
I could have toothed you could have toothed he could have toothed we could have toothed you could have toothed they could have toothed	I could have been toothing you could have been toothing he could have been toothing we could have been toothing you could have been toothing they could have been toothing

Negación

Forma simple	Forma con V-ing
I could not tooth you could not tooth he could not tooth we could not tooth you could not tooth they could not tooth	I could not be toothing you could not be toothing he could not be toothing we could not be toothing you could not be toothing they could not be toothing
Perfecto	Perfecto con V-ing
I could not have toothed you could not have toothed he could not have toothed we could not have toothed you could not have toothed they could not have toothed	I could not have been toothing you could not have been toothing he could not have been toothing we could not have been toothing you could not have been toothing they could not have been toothing

Forma interrogativa

Forma simple	Forma con V-ing
could I tooth? could you tooth? could he tooth? could we tooth? could you tooth? could they tooth?	could I be toothing? could you be toothing? could he be toothing? could we be toothing? could you be toothing? could they be toothing?
Perfecto	Perfecto con V-ing
could I have toothed? could you have toothed? could he have toothed? could we have toothed? could you have toothed? could they have toothed?	could I have been toothing? could you have been toothing? could he have been toothing? could we have been toothing? could you have been toothing? could they have been toothing?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not tooth? could you not tooth? could he not tooth? could we not tooth? could you not tooth? could they not tooth?	could I not be toothing? could you not be toothing? could he not be toothing? could we not be toothing? could you not be toothing? could they not be toothing?
Perfecto	Perfecto con V-ing
could I not have toothed? could you not have toothed? could he not have toothed? could we not have toothed? could you not have toothed? could they not have toothed?	could I not have been toothing? could you not have been toothing? could he not have been toothing? could we not have been toothing? could you not have been toothing? could they not have been toothing?